独联体8个国家2011年10月在圣彼得堡签署的《独联体自由贸易区协定》，于今年9月20日，在乌克兰（继俄罗斯、白俄罗斯之后）议会批准该协定30天之后，正式生效。 

Commonwealth of independent states eight countries in October 2011 signed in st. Petersburg[Commonwealth of independent states free trade area agreement],In September 20,,In Ukraine(After Russia/Belarus after)Congress approved the agreement after 30 days,Formally went into effect. 

　　根据“此后批准的国家将在其批准后过30天生效”的相关规定，亚美尼亚于9月11日经议会批准该协定，批准文件于当月17日递交，故而将于10月17日对亚美尼亚正式生效。

According to"After the approval of the state will be in its approval after 30 days effect"The relevant provisions of the,Armenia on September 11 nikkei parliamentary approval of this agreement,Approval documents submitted in that month 17,So will be held on October 17, formally went into effect in Armenia.